diff --git a/front/package-lock.json b/front/package-lock.json
index 8b47b95a..f558b325 100644
--- a/front/package-lock.json
+++ b/front/package-lock.json
@@ -8,7 +8,6 @@
       "name": "learnhouse",
       "version": "0.1.0",
       "dependencies": {
-        "crypto": "^1.0.1",
         "framer-motion": "^7.3.6",
         "next": "12.3.1",
         "react": "18.2.0",
@@ -1309,12 +1308,6 @@
         "node": ">= 8"
       }
     },
-    "node_modules/crypto": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/crypto/-/crypto-1.0.1.tgz",
-      "integrity": "sha512-VxBKmeNcqQdiUQUW2Tzq0t377b54N2bMtXO/qiLa+6eRRmmC4qT3D4OnTGoT/U6O9aklQ/jTwbOtRMTTY8G0Ig==",
-      "deprecated": "This package is no longer supported. It's now a built-in Node module. If you've depended on crypto, you should switch to the one that's built-in."
-    },
     "node_modules/css-box-model": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/css-box-model/-/css-box-model-1.2.1.tgz",
@@ -4819,11 +4812,6 @@
         "which": "^2.0.1"
       }
     },
-    "crypto": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/crypto/-/crypto-1.0.1.tgz",
-      "integrity": "sha512-VxBKmeNcqQdiUQUW2Tzq0t377b54N2bMtXO/qiLa+6eRRmmC4qT3D4OnTGoT/U6O9aklQ/jTwbOtRMTTY8G0Ig=="
-    },
     "css-box-model": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/css-box-model/-/css-box-model-1.2.1.tgz",
diff --git a/src/services/security.py b/src/services/security.py
index 9bed2a6a..4a4b0e65 100644
--- a/src/services/security.py
+++ b/src/services/security.py
@@ -38,9 +38,10 @@ async def verify_user_rights_with_roles(action: str, user_id: str, element_id: s
     await check_database()
     roles = learnhouseDB["roles"]
 
-    user_roles_cursor = roles.find({
-        "linked_users": str(user_id)
-    })
+    # find data where user_id is in linked_users or * is in linked_users
+    user_roles_cursor = roles.find({"$or": [{"linked_users": user_id}, {"linked_users": "*"}]})
+
+    
 
     user_roles = []